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Finding the Fourth Proportional to 438,836.49, 658,254.65 and 118,990.17

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Solution

The fourth proportional to 438,836.49, 658,254.65 and 118,990.17 is: 178,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,836.49 : 658,254.65 = 118,990.17 : x
  2. Step 2: Convert to fraction form
    438,836.49/658,254.65 = 118,990.17/x
  3. Step 3: Cross multiply
    438,836.49x = 658,254.65 × 118,990.17
  4. Step 4: Simplify right side
    438,836.49x = 78,325,832,111.84
  5. Step 5: Solve for x
    x = 78,325,832,111.84/438,836.49
  6. Step 6: Final answer
    x = 178,485.23

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